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United StatesThe weather in April in Boulder
It's cool to moderate in April in Boulder with an average temperature of 16°C. Temperatures this month range from a low of 11°C to a high of 20°C. At night, you can expect temperatures between 0°C and 6°C.
Looking for sun and warm weather? April isn’t a good month to be in Boulder. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Boulder, Colorado. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 30°C in 2022, Boulder reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was -4°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -12°C to a highest value of 14°C.
Precipitation and snowfall
In April, there is an average of 26 mm of precipitation, spread over 6 days. Of the total precipitation, about 17 cm falls as snow in April. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in April for Boulder
Click on any day in April to get detailed info about the usual weather on that day in Boulder. Check out the historical temperatures and precipitation over the past 10 years on this day.
April weather comparison
| Boulder | New York | |
|---|---|---|
| Average temperature | 16°C | 17°C |
| Max. temperature | 20°C | 22°C |
| Min. temperature | 0°C | -5°C |
| Total precipitation | 26 mm | 81 mm |
| Rainy days | 6 days | 11 days |
| Total snowfall | 17 cm | 0,4 cm |
| Snowy days | 8 days | 1 day |
Start of April
The month of April starts in Boulder with cool temps, averaging around 17°C during the day and nights around 3°C.
Mid April
By mid-April, daytime temps drop to around 15°C, with nights around 3°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of April
By the end of April, the average daytime temperature in Boulder is around 18°C, while nighttime temps are about 5°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Boulder for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in April in Boulder, Colorado. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in April in Boulder
Temperature in April in Boulder over the years
Precipitation charts
These charts show the average amount of precipitation in April in Boulder, Colorado. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in April in Boulder
Total precipitation in April in Boulder over the years
Daily Snowfall in April in Boulder
Snowfall in April in Boulder per year
Daily UV index in April in Boulder
This chart shows the average daily UV index in April in Boulder, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in April in Boulder
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Average weather in Boulder by month
Click on a month below to see detailed weather info for Boulder. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.